18results about How to "Improve application reliability" patented technology

The invention discloses a pure smelting method for nickel-based superalloy, which relates to the technical field of metal smelting and comprises the following steps: (1) screening high-purity raw materials; (2) selecting a vacuum induction melting furnace and carrying out vacuumizing treatment; (3) sequentially adding the pretreated raw materials into a vacuum induction melting furnace, and heating and melting the raw materials; (4) carrying out electromagnetic stirring; (5) preparing special electroslag, and drying and crushing the electroslag; and (6) casting the alloy liquid subjected to vacuum melting into a consumable electrode, inserting the consumable electrode into the slag of the electroslag remelting furnace, and electrifying. According to the design scheme, impurities in the nickel-based superalloy are effectively removed, the purity and uniformity of the alloy are improved, the mechanical property and thermal stability of the alloy are improved, the service life is prolonged, and a better purification effect is achieved.

The utility model provides a side air curtain guiding support and a vehicle, the side air curtain guiding support comprises a support body, a mounting portion and a first protruding portion, the mounting portion and the first protruding portion are arranged on the support body, the mounting portion is used for mounting the support body on a side wall metal plate, and the first protruding portion is used for supporting a side air curtain of the vehicle. The first protruding part protrudes towards the side, back on to the side wall metal plate, of the support body, a cavity is formed in the first protruding part, and a first reinforcing rib is arranged in the cavity. The side air curtain guide support has good structural strength and can meet the requirement for weight reduction, and in the popping process of the side air curtain, acting force applied to the side air curtain guide support can be well decomposed by the first protruding part, so that the side air curtain guide support can be prevented from being damaged, and the maintenance cost of a vehicle can be reduced.

The application discloses a spring reliability evaluation method, and belongs to the technical field of spring testing. The method comprises the following steps: obtaining initial elastic force of a to-be-tested spring compressed to a working length; pretreating the to-be-tested spring; performing an acceleration experiment on the pretreated to-be-tested spring for a preset time length, and obtaining spring elastic force after the acceleration experiment; combining the initial elastic force and the spring elastic force after the acceleration experiment, and establishing a performance degradation model of the to-be-tested spring in which the elastic force changes with time; establishing a relationship formula of spring relaxation rate and temperature stress including multiple model parameters; estimating the relationship formula of the spring relaxation rate and the temperature stress, and obtaining model parameter estimation values; establishing a spring elastic force degradation model including test errors; determining a likelihood function of the spring elastic force degradation model including the test errors; calculating a maximum likelihood estimation value of the likelihood function; and calculating reliability of the to-be-tested spring according to the maximum likelihood estimation value and the performance degradation model, and combining a Monte Carlo simulation method.

The application discloses an online evaluation method for a condensate pump cavitation state. The online evaluation method comprises the following steps: obtaining original vibration signal and working condition signal data of the condensate pump; performing sub-band decomposition processing on the original vibration signal to obtain different types of sub-band features; inputting the working condition signal data into a pre-trained regression prediction model to output a health background prediction value that should appear under the condition of no cavitation; constructing residual features according to the sub-band features and the output of the regression prediction model; performing mechanical fault pre-screening according to the residual features to determine whether it is a mechanical fault; if it is not a mechanical fault, the cavitation state discrimination step is continued; in the cavitation state discrimination step, migration features are calculated according to the residual features, a threshold is dynamically corrected according to the working condition signal data, and finally, the cavitation state is evaluated. The method can obviously improve the problem that the bubble features are hidden under the low signal-to-noise ratio condition, and reduce the false positives and false negatives in the variable working condition operation.

The invention belongs to the technical field of semiconductor packaging materials, and particularly provides a PS conductive carrier tape material special for semiconductor packaging and a preparation method thereof.The carrier tape material is prepared from, by weight, 85-92 parts of base material resin, 5-6 parts of conductive filler, 3-4 parts of multifunctional compatilizer and 1.5-2.5 parts of temperature adaptation modifier. The carrier tape material disclosed by the invention is high in temperature fluctuation adaptability, has reliable compatibility at different temperatures, is high in bonding strength with a cover tape during application, is not easy to unseal, and is excellent in performance.

The utility model provides a handle assembly and a vehicle. The handle assembly comprises a handle, a pivot shaft component and a mounting base, a containing groove is formed in the side, facing the mounting base, of the handle, and blind holes are formed in the two sides of the containing groove; the handle is mounted on the mounting base through a pivoting shaft assembly, and the pivoting shaft assembly comprises a first shaft main body, a second shaft main body and an elastic piece connected between the first shaft main body and the second shaft main body; the first shaft body and the second shaft body are close to each other and can be embedded into the containing groove, and the elastic piece stores energy. The elastic piece releases energy, and the first shaft body and the second shaft body are far away from each other and can be inserted into the blind holes in the two sides correspondingly. According to the handle assembly, installation is convenient, the assembling efficiency is improved, after the handle is installed, the pivoting shaft assembly can be completely hidden and cannot be exposed, a through hole does not need to be formed in the handle, the whole color of the handle is consistent, and therefore the delicate sense of a vehicle can be improved.

This application relates to the field of battery technology and provides a battery pack architecture and vehicle. The battery pack architecture of this application includes a power module, and a charging interface and a controller interface connected to the power module. The power module includes a first battery pack, a second battery pack, a first contactor connected between the positive terminals of both the first and second battery packs, a second contactor connected between the negative terminal of the first and second battery packs and the positive terminal of the second battery pack, and a third contactor connected between the negative terminals of both the first and second battery packs. Controlling the first, second, and third contactors to turn them on and off allows for switching between parallel and series connections between the first and second battery packs. The battery pack architecture described in this application, with two sets of battery packs, offers high reliability; if one set fails, the other can still operate. It also supports both parallel and series charging, providing good charging compatibility.

The invention provides a dynamic knowledge graph updating method based on cross attention and a model training method and device.The updating method comprises the steps that tetrad data of a current time slice and a historical knowledge graph are input into a model, and structured time sequence data are generated by influencing modeling, and the local association information and the random initialization information of the new entity are fused to generate an initial feature. Then, the model constructs propagation information according to the new entity features and historical entity features, and extracts static period information in combination with historical accumulated time sequence signals; and finally, interacting the to-be-updated entity features with the propagation information through a cross attention mechanism, and fusing the to-be-updated entity features with the periodic information to generate updated entity features. Semantic alignment of new knowledge of the knowledge graph and the historical period can be achieved, disastrous forgetting is effectively avoided, meanwhile, the knowledge graph updating efficiency and reliability can be effectively improved, and the resource occupancy rate of computing equipment is reduced.

This application discloses a cell imaging device and workstation, relating to the field of biodetection technology, to alleviate the problem of operators accidentally inserting or removing samples during operation of cell imaging devices in related technologies. The cell imaging device includes a frame, a sample mounting device, a light source device, an imaging device, and a shielding component. The sample mounting device is mounted on the frame and includes a sample mounting port; the light source device is mounted on the frame and provides illumination light to the sample on the sample mounting device; the imaging device is mounted on the frame and located to one side of the sample mounting device; the shielding component is movably mounted on the frame; when the shielding component is in a first position, the sample can be mounted onto the sample mounting device through the sample mounting port; when the shielding component is in a second position, the shielding component blocks the sample mounting path corresponding to the sample mounting port. Therefore, this application has the advantages of improving the sample protection and application reliability of the cell imaging device.

This invention relates to the field of preparation method technology and discloses a method for preparing a low-density nylon foam material. The method includes selecting nylon resin as the matrix material, wherein the nylon resin is a blend of PA6 and amorphous nylon PA610 in a specific ratio, wherein the mass ratio of PA6 to PA610 is 60:40 to 80:20, and the melt strength of the nylon resin is greater than or equal to 18 Pa·s; introducing a composite foaming agent, wherein the composite foaming agent is a combination of a chemical foaming agent and a physical foaming agent; and adding a nucleating agent, wherein the nucleating agent is nano-sized silica, nano-clay, talc, or a combination thereof, wherein the mass content of nano-silica is 0.5% to 2.0%. This invention can maintain stable dimensions and mechanical properties in humid environments and has a uniform and stable cell structure.

The present invention relates to the technical field related to automobile accessories, and specifically to an airbag connecting mechanism with enhanced joint sealing, the airbag connecting mechanism with enhanced joint sealing comprising a steering wheel inner seat, an airbag outer shell, a sealing ring and a fastener, an upper side surface of the steering wheel inner seat is provided with an airbag mounting groove, and a mounting hole is provided on the bottom surface of the airbag mounting groove; by configuring the airbag outer shell to be composed of a panel, an outer ring layer, an inner ring layer and a sealing layer, and arranging an auxiliary sealing airbag mounting seat on the inner side surface of the panel, the airbag outer shell can form an extrusion effect on the auxiliary sealing airbag inside the auxiliary sealing airbag mounting seat during actual installation, so that the inner cavity of the sealing ring is inflated, thereby driving the sealing ring to expand, thereby effectively ensuring the sealing effect between the airbag outer shell and the airbag mounting groove, thereby preventing water from entering the interior of the airbag outer shell and causing airbag failure, thereby improving the application reliability of the airbag.

An axial anti-gravity three-phase pre-separation device relates to the technical field of oil field oily sewage treatment and comprises a water purification area barrel, a filler area barrel, a separation area barrel and a contact area barrel, the contact area barrel is positioned in the separation area barrel, and a cavity A is arranged between the contact area barrel and the separation area barrel; the separation area cylinder is located in the filler area cylinder, a cavity B is formed between the separation area cylinder and the filler area cylinder, the cavity B is filled with filler, the filler area cylinder is sleeved with the water purification area cylinder, a cavity C is formed between the water purification area cylinder and the filler area cylinder, a water outlet is connected to the bottom of the cavity C, and an oil collecting cylinder is arranged on the upper portion of the cavity B; the lower end of the oil collecting barrel is in sealed connection with the separation area barrel, an oil collecting cavity is formed between the oil collecting barrel and the separation area barrel, the oil collecting cavity is connected with an oil discharging pipe, the contact area barrel comprises a cylinder section located on the upper portion and a conical barrel section located on the lower portion, one side of the conical barrel section is tangentially connected with a nanometer gas-dissolved water inlet pipe, and the opposite side of the conical barrel section is tangentially connected with a water inlet pipe. According to the invention, three-phase pre-separation is realized.

This utility model discloses a moving spring bracket, a moving spring structure, and an electromagnetic relay. The moving spring bracket includes a fixed part and a support part arranged and opposite to each other along a first direction. The support part supports a bridge-type moving spring. The fixed part has at least one positioning part on each side of a second direction. The positioning parts on both sides of the fixed part correspond one-to-one, forming at least one set of paired positioning parts. The two positioning parts in each set are opposite to at least one bridge-type moving spring supported by the support part in the first direction, so as to provide an elastic element between the positioning part and the bridge-type moving spring. The first direction and the second direction are perpendicular to each other, and the second direction is consistent with the length direction of the bridge-type moving spring supported by the support part. The moving spring bracket of this utility model can replace the traditional contact support, providing a structural basis for realizing multi-point support of the bridge-type moving spring. This structural design helps to optimize the force distribution of the bridge-type moving spring and can significantly reduce the vibration amplitude during the breaking process.

The utility model discloses a dynamic test system for a high-power thyristor, which is characterized in that a test element is connected onto a test lead connecting an output positive electrode and an output negative electrode of a high-voltage charging unit, the test element comprises a waveform adjusting inductor L and a tested thyristor SCR which are connected in series, and the test element is connected in parallel with an energy storage capacitor C and a reverse absorption diode D; the control end of the high-voltage charging unit is connected with the control unit through a signal line. The test system can be applied to verification test and device screening under the test conditions of different models, different voltage grades and different thyristors d i / dt.

The application relates to the technical field of flight devices, and discloses a seat with a seat height adjusting function and a flight device. The seat with the seat height adjusting function comprises a seat framework, an adjusting piece and a seat body. One end of the adjusting piece is connected to the seat framework. The other end of the adjusting piece is connected to the seat body, and the seat body moves along a first direction relative to the seat framework through the adjusting piece. Wherein, the seat with the seat height adjusting function further comprises a rolling piece and / or a friction reducing piece; the rolling piece is arranged on the adjusting piece, and the rolling piece is in rolling cooperation with one of the seat framework and the seat body; the friction reducing piece is arranged on the adjusting piece, and the friction reducing piece is in contact with the seat framework or the seat body. The application has the beneficial effect of improving the smoothness of the adjusting position of the seat body relative to the seat framework.

This invention relates to the field of marine technology and proposes a dynamic balance compensation structure for ships and its application method. The structure includes a hull, compartments, hinged supports, a linear buffer assembly, and a first locking mechanism. Two compartments are arranged side-by-side within the hull. The relatively distant sides of the two compartments are hinged to the hull via the hinged supports. The linear buffer assembly is disposed within the hull and abuts against the opposing surfaces of the two compartments. The first locking mechanism is disposed within the hull and is used to limit the movement of the two compartments. When the hull sways from side to side, this invention uses the linear buffer assembly to drive the two compartments to swing along the hinged supports, thereby achieving balance compensation. Since this structure only requires the linear buffer assembly to drive the compartments to swing, without involving frequent motor commutation, and the force is transmitted axially along the linear buffer assembly, it offers higher stability, greater safety and reliability, and wider applicability compared to methods using motor commutation compensation.

The utility model discloses a current sensor, which comprises a shell, a circuit board and a magnetic core winding, the circuit board and the magnetic core winding are arranged in the shell, a connecting piece is arranged in the current sensor, and the connecting piece comprises a connecting piece main body and a U-shaped clamping groove connected with the connecting piece main body; a plurality of through holes are formed in the connecting piece main body, and PINs are arranged in the through holes in a penetrating manner; the U-shaped clamping groove is fixed to one side of the connecting piece body, and part of the magnetic core winding is embedded into the U-shaped clamping groove to be connected with the connecting piece. By improving the connection mode between the circuit board and the magnetic core winding in the current sensor, the contact thickness between the wire inlet end and the wire outlet end of the magnetic core winding and the PIN needle is relatively increased, welding is facilitated, and the magnetic core winding is fixed through a U-shaped clamping groove by using a connecting piece so as to provide use stability; in this way, wire breaking between the wire inlet end and the wire outlet end of the magnetic core winding and the PIN during welding and when the magnetic core winding is used is avoided, the wiring hole in the circuit board is connected with the upper end of the PIN, direct welding of the magnetic core winding and the circuit board is avoided, and the use stability of the current sensor is improved.